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Mechanical Properties of Seismic Resistant Structural Steel (IS 15962:2012)
Grade UTS Yield Strength (MPa, min.) % El min. Charpy Impact YS/UTS
(MPa, min.) GL=5.65ÖA0 (J at 0ºC) min. max.
<20 mm 20-40 mm >40 mm
E250S 410 250 240 230 23 27 0.80
E300S 440 300 290 280 22 27 0.80
E350S 490 350 330 320 22 27 0.85
E450S 570 450 430 420 20 27 0.88
Mechanical Properties of high tensile flat rolled steel for lighter cylinder
(IS 15914:2011)
Grade Tensile Yield Percentage Elongation Reference Heat
Strength Stress MPa at Gauge Length = Treatment Austenitizing
MPa Min 5.65ÖSo Min Temperature ºC
<3 mm 3 3 to 5 mm 3
HS 235 360-460 235 25 32 920-960
HS 265 410-510 265 22 30 890-930
HS 295 450-560 295 20 28 890-930
HS 345 490-610 345 18 24 880-920
The above properties are specified for cold formed and normalized cylinder. However tensile
properties of hot rolled plate/sheet/strip are to be mutually agreed upon by the producer and by
the cylinder manufacturer.
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